42 1010 Talbot, Robert and Dibb, Jack University of New Hampshire DC-8 Atmospheric Aerosol Chemical Composition SUCCESS 1 1 1996 4 18 1996 8 30 0 Midpoint of sampling interval in elapsed seconds from 00Z on takeoff date. 9 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 99999 99999 99999 99999 99999 99999 99999 99999 99999 Nitrate (NO3); pptv Sulfate (SO4); pptv Chloride (Cl); pptv Oxalate (C2O4); pptv Ammonium (NH4); pptv Potassium (K); pptv Sodium (Na); pptv Calcium (Ca); pptv Magnesium (Mg); pptv 2 1.0 1.0 99999 99999 Start Time; seconds Stop Time; seconds 0 14 Species mixing ratios are reported in parts per trillion by volume. Mixing ratio below limit of detection indicated as 88888. Start and stop times (in Universal Time) for individual samples are reported in seconds of the day (1 day = 86400 sec.). Average uncertainties in mixing ratios are as follows: NO3 20%, SO4 13%, Cl 30%, C2O4 10%, NH4 15%, K 20%, Na 35%, Ca 15%, Mg 10%. Please note that it is not possible to use these data on time scales shorter than reported here. The most useful and appropriate method of comparing the UNH aerosol data to other SUCCESS data is to average the higher resolution measurements over the reported aerosol sampling time intervals. Direct questions about these data to R. Talbot or J. Dibb at: Institute for the Study of Earth, Oceans and Space, Morse Hall, University of New Hampshire, Durham, NH 03824. e-mail: rwt@christa.unh.edu or jed@unh.edu 64095 63480 64710 49.5 36.3 0.3 88888 60.7 88888 88888 2.6 2.5 65168 64920 65416 377.0 32.4 88888 88888 15.3 88888 88888 19.0 88888 65588 65416 65760 185.5 5.6 88888 88888 12.4 88888 88888 8.6 88888 66585 66030 67140 19.4 88888 9.0 88888 88888 10.9 51.9 88888 88888 67710 67320 68100 11.6 88888 11.0 88888 88888 4.6 25.1 88888 88888 68730 68280 69180 30.7 2.2 88888 88888 88888 15.6 59.6 88888 88888 70095 69390 70800 19.5 0.2 8.7 88888 88888 8.4 47.0 88888 0.8 71390 70959 71820 101.5 5.5 42.5 88888 0.6 40.8 134.3 3.9 88888 72405 71910 72900 88888 4.2 38.4 88888 88888 88888 88888 29.8 6.4 73740 73050 74430 20.1 2.3 15.9 88888 1.7 22.4 84.7 7.9 5.3